Precision amplifier for bridge circuits

AM467

analog microelectronics

February 2007

Analog Microelectronics GmbH

Phone: +49 (0)6131/91 073 – 0

1/9

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 1.0

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

PRINCIPLE FUNCTION

Adjustable amplification of differential input voltage signals

(from 0 to

±5 mV FS up to 0 to ±100 mV FS)

to an adjustable, ratiometric output voltage of 0.2V to Vcc-0.2 V

TYPICAL APPLICATIONS

• Amplifiers for ceramic sensing elements

• Amplifiers for DMS sensing elements

• Amplifiers for GMR sensing elements

• For industrial and automotive applications

AM467

V = 5V 5%

CC

Differential

input

voltages

( 5... 100mV FS)

V0,2 V -0,2V

(adjustable)

e.g.0,5...4,5V

ratiometric

OUT

CC

=

...

_

+

_

+

_

+